Megger INGVAR, Руководство пользователя

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52 ZP-BH05E BH0654BE
8 APPLICATION EXAMPLES
tions ("OP" on the display) is increased by
one on the display. INGVAR stores the trip
(opening) times and reclosing times and the
currents that prevailed when each trip and
reclosing took place.
8]
Generation stops when you press the OFF
button
or when the preset limited-time
generation period ("MAX TIME") is reached.
Display shows:
Total
time to
OFF
10.00s RECL.
Actual
current
0A 3:OP
Number
of opera-
tions
9]
Press to dump the test results via the
USB-port, see appendix 1.
10]
Press ESC to get more information on the
display:
Total
recl.
time
1)
9.015sTot 3:OP
First trip
pulse
985ms T1 39A
Current
at T1
1) Displayed provided generation continued until lock-out
11]
Turn the Select/set knob to get more infor-
mation displayed.
12]
Press
TIME
to start a new test.
13]
Press the
APPL
button to reset INGVAR to
normal use.
14]
Turn the Select/set knob until "NORMAL
USE" appears on the display.
15]
Press and INGVAR will be reset for nor-
mal use.
8.5 Testing a sectionalizer
You can test a sectionalizer by making appropriate
changes in INGVAR’s settings. Here INGVAR sends out
a preset sequence of current pulses corresponding
to those that would be obtained from a direct-acting
automatic recloser. After the cycle is completed, the
following are stored and displayed:
The number of current pulses until lockout (number of
times the current is interrupted).
The total accumulated time (i.e. from the recloser’s
first trip until its last trip).
The trip times and the reclosing times.
The current at the first four trip occations.
Prior to the test 4 different puls-duration times (T1 -
T4) and the reclosing time (R1 - R4) can be set.
Note After pulse T4 and R4 a pulse T5 and a pulse
R5 will be generated. T5 and R5 are identical
to T1 and R1. Use the "MAX TIME" function
to limit no. of pulses.
1]
Set the desired current, see section 7.3 "Set-
ting the desired current" for details.
2]
Press the
APPL
button.
3]
Turn the Select/set knob until "SECTIONAL-
IZER" appears in the display window.
4]
Press .
5]
Set the time for T1 using the Select/set knob .
6]
Press .
7]
Set the times for R1, T2, R2 etc.using the
Select/set knob .
8]
Press
APPL
.
9]
If you want to use limited-time generation,
activate
MAX TIME and set the desired maxi-
mum generation time.
10]
Press
TIME
or
MOM
to start the test.
11]
Generation stops when you press OFF button
, release the MOM button or when the
preset MAX TIME has been reached.
The display shows:
Total
time to
OFF
10.00s SECT.
Actual
current
0A 2:OP
Pulses un-
til lockout
12]
Press to dump the results via the USB-
port, see appendix 1.